Description

The A4850 is an IC chip belonging to the electronic component category that provides economical solutions in VGA/XGA and multi-frequency monitors. The device incorporates the complete horizontal and vertical small signal processing and offers an extremely advanced system solution in conjunction with TDA486X or TDA8351 (vertical output circuits).

Specifications and features

• VGA operation fully implemented including alignment-free vertical and E/W amplitude pre-settings.
• 4th VGA mode easy applicable (XGA, Super VGA).
• Multi-frequency operation externally selectable.
• All adjustments DC-controllable.
• Alignment-free oscillators.
• Sync separators for video or horizontal and vertical TTL sync levels regardless of polarity.
• Horizontal oscillator with PLL1 for sync and PLL2 for flyback.
• Constant vertical and E/W amplitude in multi-frequency operation.
• DC-coupling to vertical power amplifier (TDA486X or TDA8351).
• Internal supply voltage stabilization with excellent ripple rejection to ensure stable geometrical adjustments.

Application Scenarios

The A4850 electronic component model can be used in various VGA/XGA and multi-frequency monitors to achieve stable geometrical adjustments, constant vertical and E/W amplitude, and alignment-free oscillators. The device is an ideal solution for economical needs in monitor displays.

Comparison

• Incorporates the complete horizontal and vertical small signal processing.
• VGA operation fully implemented including alignment-free vertical and E/W amplitude pre-settings.
• Multi-frequency operation externally selectable.
• DC-coupling to vertical power amplifier (TDA486X or TDA8351).
• Internal supply voltage stabilization with excellent ripple rejection.

• The device can only be used in VGA/XGA and multi-frequency monitors and cannot be used in other electronic appliances or devices.